Cap for portable beverage container



FIG. 1 is a perspective view of a cap for portable beverage container in the form of a baseball;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a side elevation view thereof; and,

FIG. 4 is a top plan view thereof.

The broken lines showing the base of the cap and beverage bottle are included for the purpose of illustrating the unclaimed portions of the article and forms no part of the claimed design. 

The ornamental design for a cap for portable beverage container, as shown and described. 